FrostyTech.com Heatsink Reviews and Analysis
> GO < Search
TOP 5 BEST Heat Sinks     SEARCH     News     Reviews    
Follow Frostytech on FacebookFrostytech News RSS FeedFollow frostytech on Twitter
° Reviews and Articles
° Breaking News
° Mfg's Index
° Top 5 Heatsinks
° Top 5 Liquid Cooling
° Top 5 Low Profile   Heatsinks

Top 5 Heatsink Charts


NoFan Computer
What's New in Heatsinks?
°  DEEPCOOL GF120 COOLING FAN REVIEW

°  Cooler Master Nepton 240M Liquid CPU Cooler

°  NZXT Kraken X31 Review

°  Thermalright Macho Zero Passive CPU Cooler Review

°  Cooler Master Nepton 240M Liquid CPU Cooler Review

°  Cooler Master Nepton 240M Liquid Radiator Review


   - or - Best 5 Heatsinks?
Akasa AK821 Copper Base Heatsink Review
Akasa AK821 Copper Base Heatsink Review
Overall Rating:   70%
Abstract: With the copper insert the Akasa AK821 makes direct contact with a metal which has a high thermal conductivity.

 Company link     Category     Published     Author    
Akasa   $$ Price It! ££ Cooling / Heatsinks   Jan 25, 2003   Max Page  


Akasa AK821 Copper Base Heatsink Review
Have you ever seen one of those television shows that explain how typical household consumer products like carpets, pasta and pop tins are made? Well, if you haven't make sure you watch out for the one that explains how aluminum pop tins are constructed because the Akasa Ak821 reminds me a lot of that process.

If I've got my facts straight, an aluminum cans shape is first made by dropping a small disc of pure aluminum into a hollow steel die. A piston is forced into this die under high pressure which squishes the aluminum into forming the rough outside dimensions of the can. When this happens the aluminum flows like silly putty (a technical term :-) to fill in the voids between the die and piston. Once this process is over a fresh (half-finished) aluminum can is popped out and then sent on down the assembly line where it is polished and its shape refined. Looking at the Akasa AK821 it's easy to see that the heatsink has been cold forged in a similar manner.

Along with the few hundred aluminum pins is a nice copper base insert. With the copper insert the Akasa AK821 makes direct contact with a metal which has a high thermal conductivity. There is no way to tell how thick the copper insert is, but as the base is just 7mm thick, I think 3-4mm wouldn't be too much of a stretch.

Heatsink Specsheet:
  • Model Name: AK821
  • Fan Specs: Sanyo Denki, 4600RPM, 33.6CFM, 12V, 0.17A.
  • Fan Dim: 25x60x60mm
  • Heatsink Dim: 80x60x74mm
  • HS Material: Aluminum, copper insert
  • Mfg by: Akasa

Sold By: www.lapicon.co.uk
    Heatsink Audio Sample Included.

    When we review heatsinks here we always unscrew the fans for an unobstructed view of the top of the heatsink fins. The Akasa AK821's fins are so soft that as we screwed the fan back into place a couple of the fins started get twisted up.

    This isn't going to hurt the performance of the heatsink by any means, but if you are interested in trying out more than just the stock heatsink it would be something to take note of.

    The fan shroud keeps all the fins in place, and offers spacing for the fan, but the screws attached directly to the fins themselves.

    Since this heatsink is made in one piece, there are no joints between the base of the pins and the base plate. Unlike some other designs we have seen in the past which press aluminum pins into holes drilled in a separate plate of aluminum or copper, there are no joints here to worry about over time - the AK821 is a one-piece unit.

    ° Next Page 

    Article Contents:
     Page 1:  — Akasa AK821 Copper Base Heatsink Review
     Page 2:  Close up look at the heatsink
     Page 3:  Heatsink Test Parameters
     Page 4:  Acoustic Test Measurements & Recordings
     Page 5:  Synthetic Temperature Test Results

    Resources
    ° Got Feedback?
    ° Mk.II Test Platform
    ° Where To Buy?
    ° Manufacturer Index
    ° Industry Dir.
    ° Cooling Projects

    Raijintek Pallas Low Profile Heatsink Review

    Sandia Cooler: Air Bearing Heatsink Prototype - 2014 Update!

    BeQuiet Dark Rock Pro 3 Low Noise Heatsink Review

    Scythe Ashura Shadow Heatsink Review

    SilentiumPC Fera2 HE1224 Heatsink Review

    nPowerTek NPH-1366-115HC Heatsink Review
    ...More Articles >>

     

    Websites you may also like:
    PCSTATS

    Google Search Frostytech

    Time stamped: 12:23AM, 10.26.2014



    FrostyTech.com
    Since June 1999

    Find a Heatsink / RSS Feeds
    Latest Heatsink Reviews
    Top 5 Heatsinks Tested
    News RSS Feed
    Reviews RSS Feed


    Social Media
    Facebook Fan Page
    Twitter
    Pinterest


    FrostyTech.com Info
    Feedback
    Contact Us / Heatsink Submissions
    Submit News
    Legal

    Contact the Suite 66 Advertising Agency
    © Copyright 1999-2014 www.frostytech.com. All Rights Reserved. Privacy policy and Terms of Use
    Images © FrostyTech.com and may not be reproduced without express written permission.